Road testing the 3T Ventus aero bar properly required a bit of trigonometry, a dash of ingenuity, and smidge of creativity, some nerve, and a credit card with room on it.

There are some very sexy integrated aero bars on the market right now. Profile Design’s Carbon X. 3T’s Ventus. Visiontech’s Trimax. All these feature integrated stems. How does one divine what frame fits these bars?

Are numerical sizing schemes more accurate than T-shirt sizes? Yes, but only marginally.

Thinking about getting a Scott Plasma? How about a Specialized Transition S Works? What size bike is your best fit? Would it surprise you to know that one in size M fits precisely the same size as the other in size L?

Tri bike fitters using the F.I.S.T. system often find they need a size bigger bike for their customers versus what the fit session indicates. Here’s why.

F.I.S.T. Workshops, and various other tri and bike related camps, take place on “The Compound,” also known as Xantusia.

This is an article in a series describing our F.I.S.T. process for tri bike fitting, and in here we lay out the state of the art in tools for best practices.

This is the final installment of our series on our F.I.S.T. tri bike fit process, and takes the metrics we’ve generated and outputs your “best” bike.

Slowtwitch means different things to different athletes, but tri bike fit is the thing we’re probably best known for. Herein is a description of our process for tri bike fit.

This second in a series of articles describing our tri bike fit system lays out the axioms on which our F.I.S.T. system relies.

In this continuation of our series on tri bike fit, we tell you what we mean by terms like “seat angle” and “hip angle,” that is, what landmarks we measure to, and why we choose them.

This third article in our series on tri bike fit lays out the fitting protocol.